@misc{indiciaed98001f508a1,
  title = {Coal resource occurrence and coal development potential maps of the Milner Quadrangle, Routt County, Colorado},
  author = {Dames \& Moore},
  year = {1980},
  doi = {10.3133/ofr79815},
  url = {https://pubs.usgs.gov/publication/ofr79815},
  note = {Source identifier: ofr79815}
}